Surfacing machine



Pll 23 1940' s. s. ROBINSON SURFACING MACHINE Filed July 24, 1957 2Sheets-Sheet 1 www Ta A W April 23 1940- I l A s. s. ROBINSON 2,197,378

SAURFACING MACHINE SAMUEL S. ROBINSON g BY ATTORNEY Patented Apr. 23,1940 UNITED STATES PATENT OFFICE 7 Claims.

This invention relates to machines for applying slag or similar coatingmaterial to a roof, licor or other surface and particularly to a machineof this kind which can be conveniently moved and transported from placeto place; and the object of the Ainvention is to provide a machine ofthe character described comprising a frame with means involving a rollerfor guiding the frame in its movement over a surface, and further to theprovision of two storage tanks or compartments, one or both of which maybe detached from the frame in the shipment or handling thereof; afurther object being to provide a machine of the character describedwherein one tank contains tar, pitch or similar coating material withtwo means for discharging the material from said tank unto a surface,and further to the provision of means for heating said tank to maintainsaid coating material soft and appliable during the use of the machine;a still further object being to provide a storage hopper for slag orother similar-material adapted to be discharged unto a surface after thecoating material has been applied thereto, and further to the provisionof means for controlling and regulating the discharge of the slag onto asurface and for evenly spreading such material on the surface in advanceof said compressing or compacting roller; a still further object beingto provide means adjacent the discharge of the tar or pitch onto thesurface for keeping said tar or pitch from spreading at opposite sidesof the machine in the movement of said machine over a predeterminedsurface, said last named means being adjustable and tensionally engagingsaid surface; and with these and other objects in view, the inventionconsists in a device of the class and for the purpose specified which issimple in construction, eiiicient in use and which is constructed ashereinafter described and claimed.

|lhe invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which:

Fig. 1 is a perspective view of a machine made according to my inventionindicating the method of its use.

Fig. 2 is a longitudinal sectional view through the machine as shown inFig. 1 with parts of the structure omitted.

Fig. 3 is a section substantially on the line 3--3 of Fig. 2 with partsof the structure broken away, and,

Fig. 4 is a partial section on the line 4-4 of Fig. 2.

In practice I provide a suitable rectangular frame 5 having hangers 6 atthe rear end portion thereof for supporting a transverse roller lforming one means for guiding the frame over a support as well as meansfor rolling down or compressing material to be laid on a surface aslater described. The forward end of the frame is provided centrallythereof with a caster or swivelled roller 8 for supporting the forwardend of the frame and to aid in guiding the movement of the frame `over asupporting surface. A handle 9 is loosely coupled with the forward endof the frame as seen in Fig. 1 of the drawings to dra'w the machine overa supporting surface.

At-the forward end portion of the frame is a substantially box-shapedcasing I0 which is open at the top and provided with an elongatedopening II in the bottom wall thereof at the front of 20 said casing,the side walls of the casing havingl inwardly extending cleats, one ofwhich is shown at I2 in Fig. 3 of the drawings, upon which a tank I3 isadapted to rest. The casing II) or the front wall thereof is providedwith two openings, T arranged one at each side of the casing and one ofwhich is shown in Fig. 3 of the drawings; and these openings are closedby doors I4 sliding Vertically in side guide strips I5, the openings inthe casing controlled by the door I4 giving access to the interiorthereof and especially to burner tanks I6 having burner heads I1 andfilling plugs I8. The tanks I6 rest on the bottom of the casing I0 andthese tanks have forwardly projecting supporting hooks I9 which areadapted to engage 3- vdischarge pipes 20 arranged transversely of themachine and coupled with depending pipes 2l coupled with the bottom ofthe tank I3 through valves 22 which control the flow of pitch or othermaterial 23 arranged in the tank I3 into the pipe 2D and out through anumber of discharge orifices 24 in the lower edge of the pipe 20 andspaced longitudinally thereof. Arranged outwardly of the casing I0 andtank I3 are two valve operating levers 25 by means of which the valves22 may be opened and closed and regulated as to flow. 'I'he top of thetank I3 is provided with an opening controlled by a hinged door 26, andit will be understood that hot tar or pitch may be inserted into thetank through this opening, 50 and the same may be maintained in heatedstate by the burners I1 which are simply in the form of torch-likeburners having sufficient heating properties to maintain this result..

At each side of the casing I0 below the frame 5 are arranged L-shapedbrackets 21 in which the upwardly extending rods 28 of side runners andhousing members 29 are mounted; said rods also extending upwardlythrough the frame 5, and coupled therewith is a plate or strip 30 havingan upwardly extending bar 3| having a hookshaped end 32 cooperating withthe tank I3 and a handle member 33 on the side wall of the tank tosupport the shoe 29 in different positions. The shoe 29 includes anelongated rubber strip 29a which contacts the surface over which saidshoe or runner passes. Arranged on each rod 28 between the brackets 21and the frame 5 are springs 34 which provide a yielding mounting of therunners 29 as will be apparent. One purpose of the adjustment of therunners 29 is to lift the same above a supporting surface to clear apreviously laid coating and to prevent marring of such coating in theoperation of laying a series of strips of the coating material side byside.

At 35 I have shown a container or hopper for slag or similar material 36arranged in the frame 5 rearwardly of the tank I3; the container 35having outwardly extending angular cleats 31 adapted to rest upon theside rails of the frame as clearly seen in Figs. l and 3. The bottom 38of the container is inclined backwardly to form the hopper contour andsaid container is provided at its lower rear edge portion with adischarge opening 39, the size of which is controlled by a verticallymovable door 40 guided in side strips 4I on the container, said doorbeing raised and lowered by a lever 42 pivoted to the container asindicated at 43, and two diverging links 44 attached to the door. Thelower edge of the door 4U is also preferably reinforced by an angie-ironstrip 40a to strengthen said edge.

Adjustable vertically in the frame 5, rearwardly of the container 35 isa trough45 having upwardly extending strips 46 with elongatedapertures41 therein to receive bolts 48 in the frame 5 for the verticaladjustment of said trough; a pin 49 being also provided in the framewhich enters the slot 41 to maintain vertical alinement o-f the trough45. The trough 45 controls the height of the lay of the slag or othermaterial upon a predetermined surface and it is desirable to feed asurplus of the slag from the hopper container 35 into the trough 45 toinsure a full and complete coverage of a surface as will be apparent.

In the use of the machine, it will be understood that the tar, pitch, orother coating material isrst laid and spread onto the surface bydischarge through the tubes 20 to form a relatively thin coating of suchmaterial as indicated at 23a in Fig. 2 of the drawings. The side runners29 serve to house the coating material 23a. within the boundaries of themachine and as the machine progresses over a surface the slag 3B is thenapplied thereto to a predetermined thickness as indicated at 36a,controlled by the dischargetrough or gage member 45, after which theroller 1 will compress the material to form a substantially even compactthickness or layer of the slag as indicated at 36h in Fig. 2 of thedrawings.

It will be understood that my invention is not necessarily limited tothe specific arrangement of the several parts herein shown anddescribed; and in some weather conditions a single burner tank I6 may bearranged centrally of Vthe casing .to maintain tar, pitch, or othermaterial in fluid or semi-fluid state, and in fact in some weatherconditions, the use of heat will not be essential.

It will also be understood that my improved machine may be utilized forlaying various kinds and classes of surfacing materials or compoundseither separately or jointly with a coating material. A machine of thistype will effect a great saving in the cost of coating or surfacingroofs, floors, and other surfaces requiring the application of materialsof the kind herein mentioned, or which are suitable for use in a machineof the character described. By making the tanks or containers detachablethe handling of the complete machine is facilitated thus giving it theportable properties which are advantageous and also produces arelatively compact arrangementl of the several parts or units of themachine; it being understood in this connection that the burners arefreely insertable and removable through the machine by the openingscontrolled by the door i4.

It will be understood that while I have shown in the accompanyingdrawings a machine lof what-might be termed the hand portable type andhand operated type; that this machine may be made on larger scales andoperated by any suitable power means, and the application or laying offinely divided or relatively coarse material of any kind or classsimilar to the laying of slag as is illustrated in the accompanyingdrawings and herein described. In some cases, the application of thecompound is not essential unless the water-proofing or othercharacteristics of the compound aredesired. To give one illustration ofanother adaptation and use of the invention, the hopper may be used as acontainer for concrete or any suitable concrete mixture for layingiioors, pavements, roadways and the like.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is: A l

1. A surface coating machine comprising a frame, means for moving andguiding the frame over a surface, a tank at one end of the machineforming a container for predetermined iiuid or semi-fluid coatingmaterial, means for discharging material from said tank onto the surfaceover which the machine passes, another container in the machinerearwardly of said tank for discharging other coating material upon thesurface treated with said first named material in the progress of amachine over a surface, av

roller for compressing or compacting the second named material on saidsurface, means comprising a receptacle between the roller and saidcontainer and in communication with the container for controlling thelay of the material on said surface, said last named means beingindependently adjustable, and adjustable means for controlling thedischarge of material from said container into said receptacle.

2. A v,surface coating machine comprising a frame, means for moving andguiding the frame over a surface, a tank at one end of the machineforming a container for predetermined uid or semi-fluid coatingmaterial, means for discharging material from said tank onto the surfaceover which the machine passes, another container in the machinerearwardly of said tank for discharging other coating material upon thesurface treated with said first named material in the progress of amachine over a surface, a roller for compressing or compacting thesecond named material on said surface, means comprising a receptaclebetween the roller and said container and in communication with thecontainer for controlling the lay of the material on said surface, saidlast named means being adjustable, adjustable means for controlling thedischarge of material from said container into said receptacle, means atopposite sides at the first named end of the frame for confiningmaterial discharged from said tank to predetermined boundaries, meansfor selectively moving said last named means into operative andinoperative positions, and tensional means for supporting said lastnamed means in operative position.

3. A machine for coating predetermined surfaces with a moisture proofsemi-fluid com.- pound and then applying a slag coating upon the surfacethus treated, said machine comprising a rectangular frame, rollers forguiding and supporting the frame over avsurface to be treated, one ofsaid rollers serving to compress the slag coating onto the surface,independent lcontainers detachably supported in the frame, one containersupporting the slag and the other the compound, the slag containerhaving a hopper discharge at the lower rear edge thereof and arangedtransversely of the machine, adjustable means at the discharge end ofthe hopper for controlling and regulating the lay of the slag on thesurface, two discharge tubes arranged transversely of the machine, oneat each side portion thereof, each tube being in communication with thecompound container and having nozzle discharges spaced longitudinally ofthe tubes and arranged transversely of the machine, independent manualcontrols for regulating the discharge of compound from saidv tubes, andtwo heating units detachably supported in the frame and arranged beneaththe compound container in heating the compound therein.

4. A machine for coating predetermined surfaces with a moisture proofsemi-fluid compound and then applyingv a slag coating upon the surfacethus treated, said machine comprising a rectangular frame, rollers' forguiding and supporting the frame over a -surface to be treated, one ofsaid rollers serving to compress the slag coating onto vthe surface,independent containers detachably supported in the frame, one containersupporting the slag and the other the compound, the slag containerhaving a hopper discharge at the lower rear edge thereof and arrangedtransverseiy of the machine. adjustable means at the discharge end ofthe hopper for controlling and regulating the lay of the slag on thesurface, two discharge tubes arranged transversely of the machine, oneat each side por-- tion thereof, each tube being in communication withthe compound container and having nozzle discharges spacedlongitudinally of the tubes and arranged transversely of the machine.independent manual controls for regulating the discharge of compoundfrom said tubes, two heatlng units detachably supported in the frame andarranged beneath the compound container in the surface thus treated,said machine compris-l ing a rectangular frame, rollers for guiding andsupporting the frame over a surface to be treated, one of said rollersserving to compress the slag coating onto the surface, independentcontainers detachably supported in the frame, one container supportingthe slag and the other the compound, the slag container having a hopperdischarge at the lower rear edge thereof and arranged transversely ofthe machine, adjustable means at the discharge end of the hopper forcontrolling and regulating the lay of the slag on the surface, twodischarge tubes arranged transversely of themachine, one at each'sideportion thereof, each tube being in communication with the compoundcontainer and having nozzle discharges spaced llongitudinally of thetubes and arranged transversely of the machine, independent manualcontrols for regulating the discharge of compound from said tubes, twoheating units detachably supported in the frame and arranged beneath thecompound container in heating the compound therein, said first namedmeans comprising a vertically adjustable receptacle, and manuallyadjustable means regulating the discharge of material from the hopperinto said receptacle.

6. In a surfacing Amachine of the class described for laying iinelydivided particles on a treated surface in a ribbon-like deposit on thesurface, a container for said particles, said container having a hopperdischarge at the lower end thereof whereby the particles may bedischarged by gravity from the lower end of the hopper onto saidsurface, a supplemental open bottom receptacle vertically adjustable inthe machine and in communication with' and extending throughout thelength of the discharge of said hopper and forming a supplementalstorage for the particles to be distributed onto the surface, andmanually adjustable means con- Itrolling the discharge of the materialfrom the hopper to the receptacle to maintain a supply of material inthe receptacle greater than the requirements for distribution onto thesurface in the progress of the machine over a surface.V

and arranged transversely of the machine, other adjustable meansadjacent the discharge end of the hopper for controlling and regulatingthe lay of the slag onA the surface, fluid discharge means arrangedtransversely of the machine in communication with the compound containerand having nozzle discharges spaced longitudinally of said means adaptedto deposit a continuous ribbon of compound, and manually actuated meansfor selectively controlling the Width of ribbon deposited.

SAMUEL S. ROBINSON.

